Harvesters – Motorized harvester – Having fluid-pressure or stored-energy motor
Patent
1980-04-28
1982-01-05
Hirsch, Paul J.
Harvesters
Motorized harvester
Having fluid-pressure or stored-energy motor
56 6, A01D 6900, A01D 7300, A01D 55264
Patent
active
043087132
ABSTRACT:
A hydraulically driven mower having a mower deck with conduit means in contact with the deck for flowing hydraulic fluid which powers hydraulic motors for driving cutting blade means positioned below the mower deck so that air flow created by the cutting blade means will provide heat transfer from the hydraulic fluid in the fluid conduit means through the deck member to provide cooling of the hydraulic fluid and a hydraulic drive system having a pressure relief means to direct hydraulic fluid supplied to a first hydraulic motor in series to the next hydraulic motor in series when the first hydraulic motor overloads to maintain sufficient hydraulic power to the second motor.
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patent: 3973379 (1976-08-01), Ecker et al.
patent: 4009556 (1977-03-01), Molzahn
patent: 4087955 (1978-05-01), Szymanis
Hirsch Paul J.
Terrain King Corporation
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